An energy storage tank and energy storage system

Abstract

This application discloses an energy storage box and energy storage system, relating to the field of energy storage technology. The system includes a box, energy storage modules, a power conversion module, and a liquid cooling system. The box has a first chamber and a second chamber arranged adjacent to each other. The second chamber contains an isolated fire-fighting compartment and a liquid-cooling unit compartment. Both the energy storage module and the power conversion module are located in the first chamber and are electrically connected. The energy storage box disclosed in this application simultaneously houses both energy storage and power conversion modules, enabling energy storage and rectification functions. Furthermore, because the energy storage module and power conversion module are located in the same chamber, they can be directly electrically connected via cables or other devices, reducing the number of cable entry points on the box and the number of boxes required for the energy storage system. This reduces the space occupied by the energy storage system and improves the space utilization rate of the site layout.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and more specifically, to an energy storage box and an energy storage system. Background Technology

[0002] Energy storage systems, as devices capable of storing and releasing energy, comprise modules that perform various functions such as energy storage and rectification. However, many current energy storage systems suffer from excessive space requirements. Therefore, reducing the space footprint of energy storage systems has become a pressing technical problem for those skilled in the art. Utility Model Content

[0003] In view of this, the purpose of this application is to provide an energy storage box to reduce the space occupied by the energy storage system.

[0004] Another objective of this application is to provide an energy storage system including the aforementioned energy storage box.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] An energy storage box, comprising:

[0007] The enclosure is provided with a first chamber and a second chamber arranged adjacent to each other. The second chamber is provided with a fire compartment and a liquid cooling unit compartment that are isolated from each other. The fire compartment is used to house fire-fighting equipment.

[0008] An energy storage module is installed within the first chamber;

[0009] A power conversion module is disposed in the first chamber and is electrically connected to the energy storage module;

[0010] A liquid cooling system, wherein the heat dissipation part of the liquid cooling system is disposed in the liquid cooling unit compartment, and the liquid cooling part of the liquid cooling system is disposed in the first chamber and exchanges heat with the energy storage module and / or the power conversion module.

[0011] Optionally, in the above-mentioned energy storage box, a ventilation opening communicating with the outside is provided on the side wall of the liquid cooling unit compartment, and a first liquid cooling flow channel is provided inside the energy storage module;

[0012] The liquid cooling system includes a first liquid cooling pipe, a second liquid cooling pipe, a circulating pump, and a heat exchanger. The first liquid cooling pipe is disposed in the first chamber, and the first liquid cooling channels of each energy storage module are connected in series on the first liquid cooling pipe. The heat exchanger and the circulating pump are connected in series on the second liquid cooling pipe, and the second liquid cooling pipe, the circulating pump, and the heat exchanger are all disposed in the liquid cooling unit compartment. The inlet end of the first liquid cooling pipe is connected to the outlet end of the second liquid cooling pipe, and the outlet end of the first liquid cooling pipe is connected to the inlet end of the second liquid cooling pipe. The circulating pump drives the coolant to circulate along the first liquid cooling pipe and the second liquid cooling pipe between the first liquid cooling channels of each energy storage module and the heat exchanger.

[0013] Optionally, in the energy storage box described above, the power conversion module is provided with a second liquid cooling channel, which is connected in series with the first liquid cooling pipe.

[0014] Optionally, in the above-mentioned energy storage box, the liquid cooling system includes a heat exchange fan, which is installed in the liquid cooling unit compartment, and the air outlet of the heat exchange fan is arranged facing the heat exchanger.

[0015] Optionally, in the above-mentioned energy storage box, a plurality of energy storage modules are stacked and arranged to form at least one row of battery clusters, and two adjacent energy storage modules in each row of battery clusters are electrically connected, and the energy storage modules in two adjacent rows of battery clusters are electrically connected.

[0016] There is at least one power conversion module, and it is electrically connected to each of the battery clusters in each column.

[0017] Optionally, in the above-mentioned energy storage box, the power conversion module is stacked with the battery cluster and is located at the top or bottom of each column of battery clusters.

[0018] Optionally, in the above-mentioned energy storage box, the first chamber is provided with an air-cooling system for air-cooling at least one of the energy storage module and the power conversion module.

[0019] Optionally, in the above-mentioned energy storage box, a first heat dissipation air duct is provided between two adjacent rows of battery clusters;

[0020] The air-cooling system includes a first cooling fan, which is disposed on top of each column of battery clusters, and the air outlet of the first cooling fan is arranged facing the first cooling air duct.

[0021] Optionally, in the above-mentioned energy storage box, a second heat dissipation air duct is provided between two adjacent energy storage modules in each column of the battery cluster, and each of the second heat dissipation air ducts in two adjacent columns of the battery cluster is connected in a one-to-one correspondence.

[0022] The air-cooling system includes a second cooling fan, the air outlet of which is arranged facing the second cooling duct.

[0023] Optionally, in the above-mentioned energy storage box, a third heat dissipation duct is provided between each row of battery clusters and the power conversion module;

[0024] The air-cooling system includes a third cooling fan, the air outlet of which is arranged facing the third cooling duct.

[0025] Optionally, in the above-mentioned energy storage box, the box body is provided with at least one set of cabinet doors corresponding to the first chamber. The set of cabinet doors includes two door panels that open and close relative to each other, and the set of cabinet doors is arranged opposite to the multiple rows of battery clusters.

[0026] Optionally, in the above-mentioned energy storage box, the box body is provided with a box body door corresponding to the second chamber, and the fire-fighting compartment is provided on the box body door.

[0027] Optionally, in the above-mentioned energy storage box, the liquid cooling unit compartment is provided with an air inlet and an air outlet, and the air outlet is located at the top of the liquid cooling unit compartment. In the vertical direction, the air inlet is lower than the air outlet.

[0028] Optionally, the energy storage box described above also includes an electrical module. The second chamber is equipped with an electrical compartment that is isolated from both the liquid cooling unit compartment and the fire protection compartment. The electrical module is located in the electrical compartment and is electrically connected to the energy storage module or the power conversion module.

[0029] Optionally, in the above-mentioned energy storage box, the top of the box is provided with multiple lifting points, and the lifting points are arranged and connected to the uprights of the box in a one-to-one correspondence.

[0030] An energy storage system includes the aforementioned energy storage box.

[0031] The energy storage box provided in this application includes a box body, energy storage modules, a power conversion module, and a liquid cooling system. The box body has a first chamber and a second chamber arranged adjacent to each other. A fire-fighting compartment and a liquid-cooling unit compartment are isolated within the second chamber. The energy storage module and the power conversion module are both located in the first chamber and are electrically connected. The fire-fighting compartment is used to house fire-fighting equipment. When the first chamber is equipped with sensors such as temperature sensors, smoke sensors, and combustible gas sensors for fire safety detection, the fire-fighting equipment may include a fire management system for fire monitoring and management. The fire management system can receive signals from various sensors in the first chamber, process and analyze them. When there is a risk of explosion or fire, the alarm controller in the fire-fighting compartment can issue audible and visual alarm signals and activate corresponding fire-fighting equipment or other safety measures to improve safety. Additionally, the fire-fighting equipment may also include fire extinguishers, fire-resistant and heat-insulating materials, etc., to deal with emergencies. The heat dissipation section of the liquid cooling system is located within the liquid cooling unit compartment. The liquid cooling component of the system is situated in the first chamber and is used to cool the energy storage module and power conversion module. Heat exchange is possible between the heat dissipation section and the liquid cooling component. Typically, the protection levels of the fire-fighting equipment and the heat dissipation section of the liquid cooling system differ; therefore, isolating the fire-fighting compartment and the liquid cooling unit compartment ensures the normal operation of both systems.

[0032] Compared to technologies that separate energy storage modules and power conversion modules into different cabinets, the energy storage box provided in this application integrates both energy storage and power conversion modules, enabling energy storage and rectification functions. Since the energy storage and power conversion modules are housed in the same chamber, they can be directly electrically connected via cables and other devices, reducing the number of cable entry points on the cabinet and the number of cabinets required for the energy storage system. This reduces the space occupied by the energy storage system and improves the space utilization of the site layout. Furthermore, the shared chamber allows for pre-assembly and testing of both modules, reducing potential failure points in the energy storage system, improving overall safety performance, effectively reducing on-site construction costs, and greatly facilitating on-site installation and maintenance. Both the fire-fighting compartment and the liquid-cooled unit compartment are located in the second chamber, improving the space utilization of the second chamber. The fire-fighting compartment and the liquid-cooled unit compartment are isolated from each other and do not interfere with each other's operations.

[0033] The energy storage system disclosed in this application includes the aforementioned energy storage box, and therefore also possesses the aforementioned structure and beneficial effects. Other structures are described in reference to relevant technologies and will not be elaborated upon here. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 The isometric view of the first type of energy storage box disclosed in the embodiments of this application Figure 1 ;

[0036] Figure 2 The isometric view of the first type of energy storage box disclosed in the embodiments of this application Figure 2 ;

[0037] Figure 3 This is a front view of the first type of energy storage box disclosed in the embodiments of this application;

[0038] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0039] Figure 5 This is a front view of the second type of energy storage box disclosed in the embodiments of this application;

[0040] Figure 6 This is a front view of the third type of energy storage box disclosed in the embodiments of this application;

[0041] Figure 7 This is a schematic diagram of the installation structure of the second cooling fan and airflow distribution component disclosed in the embodiments of this application. Figure 1 ;

[0042] Figure 8 This is a schematic diagram of the installation structure of the second cooling fan and airflow distribution component disclosed in the embodiments of this application. Figure 2 .

[0043] Among them, 100 is the enclosure, 100a is the first chamber, 100b is the second chamber, 101 is the liquid-cooled unit compartment, 102 is the electrical compartment, 103 is the lifting point, 104 is the fire compartment, 105 is the first heat dissipation duct, 106 is the second heat dissipation duct, 107 is the third heat dissipation duct, 110 is the cabinet door, 120 is the enclosure door, 121 is the fire compartment door, 122 is the air inlet, 123 is the air outlet, 200 is the energy storage module, 300 is the power conversion module, 400 is the heat exchange fan, 410 is the first heat dissipation fan, 420 is the second heat dissipation fan, 421 is the air volume distribution component, 422 is the air volume distribution outlet, 430 is the third heat dissipation fan, and 500 is the electrical module. Detailed Implementation

[0044] The core of this application is to disclose an energy storage box to reduce the space occupied by energy storage systems.

[0045] Another key aspect of this application is the disclosure of an energy storage system that includes the aforementioned energy storage box.

[0046] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model as described in the claims. Additionally, the complete contents of the structures represented in the embodiments below are not limited to those necessary for the solution of the utility model as described in the claims. It should be noted that, for ease of description, only the parts relevant to the utility model are shown in the drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0047] Combination Figures 1-6The energy storage box disclosed in this application is used in an energy storage system, including a box body 100, an energy storage module 200, a power conversion module 300, and a liquid cooling system. The box body 100 has a first chamber 100a and a second chamber 100b arranged adjacent to each other. Typically, the first chamber 100a and the second chamber 100b are arranged side by side and adjacent to each other in a horizontal direction. A fire compartment 104 and a liquid cooling unit compartment 101, which are isolated from each other, are arranged in the second chamber 100b. The energy storage module 200 and the power conversion module 300 are both located in the first chamber 100a and are electrically connected. The energy storage module 200 is used for energy storage and release, while the power conversion module 300 is used to achieve efficient conversion between different forms of electrical energy, while ensuring the stable and reliable operation of the energy storage system. The specific structure and operating principle of the energy storage module 200 and the power conversion module 300 are related technologies and will not be described in detail here. Fire compartment 104 is used to house fire-fighting equipment. When the first chamber 100a is equipped with sensors such as temperature sensors, smoke sensors, and combustible gas sensors for fire safety detection, the fire-fighting equipment may include a fire management system for fire monitoring and management. The fire management system can receive signals from various sensors in the first chamber 100a, process and analyze them. When there is a risk of explosion or fire, the alarm controller in fire compartment 104 can issue an audible and visual alarm signal and activate corresponding fire extinguishing equipment or other safety measures to improve safety. Additionally, the fire-fighting equipment may include fire extinguishers, fireproof and heat-insulating materials, etc., to deal with emergencies. The heat dissipation part of the liquid cooling system is located in the liquid cooling unit compartment 101. The liquid cooling part of the liquid cooling system is located in the first chamber 100a and is used to cool the energy storage module 200 and the power conversion module 300. Heat exchange can occur between the heat dissipation part and the liquid cooling part of the liquid cooling system. Typically, the heat dissipation components of fire-fighting equipment and liquid cooling systems have different protection levels. Therefore, isolating the fire-fighting compartment 104 and the liquid cooling unit compartment 101 from each other ensures the normal operation of each. For example, the protection level of the fire-fighting compartment 104 can be IP55, and the protection level of the liquid cooling unit compartment 101 can be IP20. Both IP55 and IP20 indicate the enclosure's ability to protect against solid particles such as dust and liquids such as water, with IP55 being a higher protection level than IP20. The enclosure 100 can be made of metal, ceramic, composite materials, etc. The fire-fighting compartment 104 and the liquid cooling unit compartment 101 can be isolated from each other by a partition, and the material of the partition can be the same as or different from the material of the enclosure 100; this application does not impose any limitations on this.

[0048] In related technologies, the energy storage module 200 and the power conversion module 300 are housed in different cabinets, resulting in a large space occupation by the energy storage system. Compared to related technologies, the energy storage box disclosed in this application simultaneously houses the energy storage module 200 and the power conversion module 300, enabling energy storage and rectification functions. Furthermore, since the energy storage module 200 and the power conversion module 300 are housed in the same chamber, they can be directly electrically connected via cables or other devices, reducing the number of cable entry points on the cabinet 100 and the number of cabinets 100 in the energy storage system, thereby reducing the space occupied by the energy storage system. This improves the space utilization of the site layout. In addition, the energy storage module 200 and the power conversion module 300 share the same chamber, which allows for the pre-assembly and testing of the energy storage module 200 and the power conversion module 300, reducing potential failure points of the energy storage system, improving the overall safety performance, effectively reducing on-site construction costs, and greatly facilitating on-site installation and maintenance. The fire compartment 104 and the liquid cooling unit compartment 101 are both located in the second chamber 100b, improving the space utilization of the second chamber 100b. Moreover, the fire compartment 104 and the liquid cooling unit compartment 101 are isolated from each other and do not affect each other's operation.

[0049] To ensure energy storage density, combined with Figure 1 and Figure 3 Within the housing 100, multiple energy storage modules 200 are stacked to form at least one battery cluster. Adjacent energy storage modules 200 within each battery cluster are electrically connected, and energy storage modules 200 within adjacent battery clusters are also electrically connected to each other. At least one power conversion module 300 is included, and it is electrically connected to each energy storage module 200 in each battery cluster, facilitating wiring between the power conversion module 300 and each battery cluster, as well as power conversion operations. Specifically, the multiple energy storage modules 200 and power conversion modules 300 can be directly stacked or stacked using a support structure. Direct stacking occupies less space and is less expensive. Stacking using a support structure allows for multiple vertically arranged storage spaces on the support, where each energy storage module 200 and power conversion module 300 can be placed in a different storage space, thus achieving vertical stacking of the energy storage modules 200 and power conversion modules 300.

[0050] Specifically, in combination Figure 3 and Figure 4The power conversion module 300 and the battery clusters can be arranged in a stacked manner. The power conversion module 300 can be located at the top or bottom of each row of battery clusters and is directly electrically connected to the energy storage module 200 closest to the power conversion module 300 in each row of battery clusters via cables. In this application, "top" and "bottom" refer to the top and bottom of the energy storage box in the vertical direction during normal operation. This arrangement at the top or bottom of each row of battery clusters facilitates wiring between adjacent energy storage modules 200 in each row of battery clusters, reducing the probability of system failure due to wiring errors by operators on-site. Figure 3 The paper presents a solution in which the power conversion module 300 is installed at the bottom of each row of battery clusters to facilitate wiring directly from the bottom of the housing 100.

[0051] In one specific embodiment, the side wall of the liquid-cooled unit compartment 101 is provided with a ventilation opening for communicating with the outside and exchanging heat, and the energy storage module 200 is provided with a first liquid-cooled flow channel, combined with Figure 3 The liquid cooling system includes a first liquid cooling pipe, a second liquid cooling pipe, a circulating pump, and a heat exchanger. The first liquid cooling pipe is located in the first chamber 100a, and the first liquid cooling channels of each energy storage module 200 are connected in series with the first liquid cooling pipe. The heat exchanger and the circulating pump are connected in series with the second liquid cooling pipe, and the second liquid cooling pipe, the circulating pump, and the heat exchanger are all located in the liquid cooling unit compartment 101. Both the first and second liquid cooling pipes are used to transport coolant, and the inlet end of the first liquid cooling pipe is connected to the outlet end of the second liquid cooling pipe, and the outlet end of the first liquid cooling pipe is connected to the inlet end of the second liquid cooling pipe, thus forming a liquid cooling loop. The circulating pump of the liquid cooling loop can pump coolant to the first liquid cooling channels of each energy storage module 200, thereby achieving heat dissipation of the energy storage module 200. The coolant after absorbing heat circulates to the heat exchanger, and the heat is dissipated to the external environment through the heat exchanger. It has the advantages of high heat exchange efficiency and good heat dissipation effect.

[0052] A first liquid cooling channel can also be set on the power conversion module 300. The first liquid cooling channel of the power conversion module 300 can also be directly connected in series with the first liquid cooling pipe. Since the first liquid cooling channels of the energy storage module 200 and the power conversion module 300 form a liquid cooling circuit with the circulating pump and heat exchanger through the first liquid cooling pipe and the second liquid cooling pipe, the number of liquid cooling pipes is reduced, the probability of pipe leakage is reduced, and the safety performance of the energy storage box is improved.

[0053] Further optimize the plan, combined with Figure 2 and Figure 3 The liquid cooling system also includes a heat exchange fan 400, which is installed inside the liquid cooling unit compartment 101, and the air outlet of the heat exchange fan 400 is arranged facing the heat exchanger to improve the heat exchange efficiency between the heat exchanger and the environment and improve the heat exchange performance.

[0054] To ensure the normal operation of the energy storage module 200 and the power conversion module 300, an air-cooling system is also installed in the first chamber 100a. The air-cooling system can perform internal circulating air cooling to dissipate heat from the energy storage module 200 and the power conversion module 300, so as to ensure the protection level of the first chamber 100a. The combination of the air-cooling system and the liquid cooling system can effectively ensure the temperature uniformity in the first chamber 100a and improve the heat exchange efficiency.

[0055] In one specific embodiment, combined with Figure 5 A first heat dissipation duct 105 is provided between two adjacent rows of battery clusters. The first heat dissipation duct 105 can be formed by the natural spacing between the two adjacent rows of battery clusters. The air cooling system includes a first cooling fan 410, which is set on the top of each row of battery clusters. The air outlet of the first cooling fan 410 faces the first heat dissipation duct 105. The heat exchange airflow blown out by the first cooling fan 410 can flow along the first heat dissipation duct 105 to pass through each energy storage module 200 in sequence, thereby exchanging heat with each energy storage module 200 and ensuring the normal operation of the energy storage module 200. The structure is simple, easy to maintain, and low in cost.

[0056] In another specific embodiment, combined with Figure 6 A second heat dissipation duct 106 is provided between two adjacent energy storage modules 200 in each battery cluster. The second heat dissipation duct 106 can be directly set at the top or bottom of the housing of each energy storage module 200, so that a second heat dissipation duct 106 is arranged between any two adjacent energy storage modules 200 in the battery cluster, and each second heat dissipation duct 106 extends along the parallel direction of the battery cluster. Each second heat dissipation duct 106 in two adjacent battery clusters is connected to the other. The housing of the second heat dissipation duct 106 and the energy storage module 200 can be an integral structure or a separate structure. When it is an integral structure, it can be made by injection molding, etc. The integrated structure is manufactured in a specific manner. When it is a split structure, it can be connected by screws, snaps, adhesives, etc. The air-cooling system includes a second cooling fan 420. The air outlet of the second cooling fan 420 is arranged facing the second cooling duct 106, which can blow the heat exchange air into the second cooling duct 106 and exchange heat with the energy storage modules 200 located on both sides of the second cooling duct 106 to ensure the normal operation of the energy storage modules 200. The structure is simple, easy to maintain, and low in cost. According to the actual situation, one second cooling fan 420 can be designed to blow air and cool the second cooling duct 106 of multiple battery clusters at the same time.

[0057] Furthermore, combined Figure 7 and Figure 8An airflow distribution component 421 is provided at the air outlet of the second cooling fan 420. The airflow distribution component 421 is provided with an air inlet that communicates with the air outlet of the second cooling fan 420 and multiple airflow distribution outlets 422. The air inlet of the airflow distribution component 421 is connected to each airflow distribution outlet 422. Each airflow distribution outlet 422 corresponds to the position of each second cooling air duct 106, so as to distribute the heat exchange airflow blown out by one second cooling fan 420 to multiple second cooling air ducts 106 for heat dissipation and reduce production costs.

[0058] Combination Figure 6 A third heat dissipation duct 107 is provided between each battery cluster and the power conversion module 300. The third heat dissipation duct 107 can be provided on the housing of the power conversion module 300 or on the housing of the energy storage module 200 arranged adjacent to the power conversion module 300 in each battery cluster. The third heat dissipation duct 107 and the housing of the power conversion module 300 or the housing of the energy storage module 200 can be an integral structure or a separate structure. When it is an integral structure, it can be an integral structure prepared by injection molding or other methods. When it is a separate structure, it can be connected by screwing, snap-fitting, adhesive or other methods. The air cooling system includes a third cooling fan 430. The air outlet of the third cooling fan 430 is arranged facing the third heat dissipation duct 107. The heat exchange airflow blown by the third cooling fan 430 can flow over the surface of the battery cluster and the power conversion module 300 and carry away the heat of both to ensure their normal operation. In a further optimized design, one airflow distribution outlet 422 of the aforementioned airflow distribution component 421 is positioned to correspond with the third heat dissipation duct 107, so that the second cooling fan 420 can achieve the same air cooling effect as the third cooling fan 430 on the power conversion module 300, thereby reducing the number of fans, saving space, and lowering production costs.

[0059] To improve heat dissipation, liquid cooling radiators can be installed at the air outlets of the first cooling fan 410, the second cooling fan 420, and the third cooling fan 430 to reduce the temperature of the heat exchange airflow blown out by the first cooling fan 410, the second cooling fan 420, and the third cooling fan 430, thereby optimizing the heat dissipation effect.

[0060] Combination Figure 1 and Figure 3 The energy storage box disclosed in this application has at least one set of cabinet doors 110 on one side of the box body 100, corresponding to the first chamber 100a. Each set of cabinet doors 110 includes two door panels that open and close relative to each other. The set of cabinet doors 110 is arranged opposite to multiple rows of battery clusters, which can reduce the number of cabinet doors 110 and reduce production costs. For example, a set of cabinet doors 110 can be arranged opposite to three rows of battery clusters, and the door panels of the cabinet doors 110 can be hinged to the box body 100.

[0061] In some embodiments, a housing door 120 corresponding to the second chamber 100b is provided on one side of the housing 100. The fire compartment 104 is installed on the housing door 120 and is opened and closed through the fire compartment door 121. Installing the fire compartment 104 on the housing door 120 does not affect the operation and maintenance of the liquid cooling system in the liquid cooling unit compartment 101 by the operators. Moreover, the position of the fire compartment 104 on the housing door 120 can be adjusted to avoid interference with the liquid cooling system. For example, the fire compartment 104 can be arranged using the top space of the liquid cooling system.

[0062] To improve heat dissipation efficiency, combined with Figure 2 The liquid-cooled unit compartment 101 is equipped with an air inlet 122 and an air outlet 123. The air outlet 123 is located at the top of the liquid-cooled unit compartment 101 and is vertically oriented. The air inlet 122 is lower than the air outlet 123. This design can make full use of the low-temperature air in the environment surrounding the enclosure 100. The cold air enters from the bottom of the liquid-cooled unit compartment 101 and exchanges heat with the liquid cooling system, carrying away the heat generated by the energy storage module 200 and the power conversion module 300 during operation. The top-exit structure facilitates the rising and rapid discharge of hot air and can distribute heat more evenly to the surrounding environment, avoiding local overheating and mitigating the heat island effect. The cabinet door 110 and the enclosure door 120 are both located on the front of the enclosure 100. The air inlet 122 can be located on the side of the enclosure 100 and the liquid-cooled unit compartment 101 to avoid the fire compartment 104 and ensure the air intake area.

[0063] Combination Figure 1 The energy storage box also includes an electrical module 500. An electrical compartment 102, which is isolated from the liquid cooling unit compartment 101 and the fire compartment 104, is provided in the second chamber 100b. The electrical module 500 is located in the electrical compartment 102 and is electrically connected to the energy storage module 200 or the power conversion module 300 via a cable for power distribution control and power output of the internal components of the energy storage system. Figure 1 The diagram illustrates a technical solution where a liquid-cooled unit compartment 101 is located on top of an electrical compartment 102. To ensure a certain level of protection, the electrical module 500 can be cooled by the aforementioned liquid-cooling system to ensure its normal operation.

[0064] This application realizes the modular design of the energy storage system inside the enclosure 100, organically combining key components such as the energy storage module 200, electrical module 500 and power conversion module 300 into a whole system. Within a limited space, these modules work together to achieve normal and efficient cooperation and operation, improving the overall performance and space utilization efficiency of the system.

[0065] In some embodiments, the length of the energy storage box disclosed in this application is less than or equal to 9600 mm, and the width is less than or equal to 2525 mm. The side of the energy storage box 100 with the cabinet door 110 is defined as the front, and the side opposite the front is defined as the back. When two energy storage boxes are arranged with their backs facing each other, maintaining a distance of 150 mm between them meets the safety and functional requirements of the new national standard, ensuring that the energy storage box has sufficient space for operation, maintenance, and ventilation. This application does not specifically limit the size of the energy storage box.

[0066] In a further step, combining Figure 1 and Figure 3 The top of the container 100 is provided with multiple lifting points 103, and each lifting point 103 is correspondingly arranged and connected to different frame columns of the container 100 to ensure reliable transmission of lifting force to the container 100. For example, the container 100 can be lifted and transported using an eight-point lifting method to ensure the safety and reliability of the lifting process. Specifically, the lifting points 103 may include lifting rings, lifting lugs, lifting beams, and slings.

[0067] The energy storage system disclosed in this application includes the aforementioned energy storage box, and therefore also possesses the aforementioned structure and beneficial effects. Other structures are described in reference to relevant technologies and will not be elaborated upon here.

[0068] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment unless explicitly excluded by another embodiment. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy storage tank, characterized by, include: The enclosure (100) is provided with a first chamber (100a) and a second chamber (100b) arranged adjacent to each other. The second chamber (100b) is provided with a fire compartment (104) and a liquid cooling unit compartment (101) that are isolated from each other. The fire compartment (104) is used to place fire-fighting equipment. An energy storage module (200) is disposed within the first chamber (100a); A power conversion module (300) is disposed in the first chamber (100a) and electrically connected to the energy storage module (200); The liquid cooling system has a heat dissipation section located in the liquid cooling unit compartment (101) and a liquid cooling section located in the first chamber (100a), where it exchanges heat with the energy storage module (200) and / or the power conversion module (300).

2. The energy storage tank of claim 1, wherein, The side wall of the liquid cooling unit compartment (101) is provided with a ventilation opening that communicates with the outside, and the energy storage module (200) is provided with a first liquid cooling flow channel inside. The liquid cooling system includes a first liquid cooling pipe, a second liquid cooling pipe, a circulating pump, and a heat exchanger. The first liquid cooling pipe is disposed in the first chamber (100a), and the first liquid cooling channels of each of the energy storage modules (200) are connected in series on the first liquid cooling pipe. The heat exchanger and the circulating pump are connected in series on the second liquid cooling pipe, and the second liquid cooling pipe, the circulating pump, and the heat exchanger are disposed in the liquid cooling unit compartment (101). The inlet end of the first liquid cooling pipe is connected to the outlet end of the second liquid cooling pipe, and the outlet end of the first liquid cooling pipe is connected to the inlet end of the second liquid cooling pipe. The circulating pump drives the coolant to circulate along the first liquid cooling pipe and the second liquid cooling pipe between the first liquid cooling channels of each of the energy storage modules (200) and the heat exchanger.

3. The energy storage tank of claim 2, wherein, The power conversion module (300) is provided with a second liquid cooling channel inside, which is connected in series with the first liquid cooling pipe.

4. The energy storage tank of claim 2, wherein, The liquid cooling system includes a heat exchange fan (400), which is located inside the liquid cooling unit compartment (101) and the air outlet of the heat exchange fan (400) is arranged facing the heat exchanger.

5. The energy storage tank of any one of claims 1-4, wherein, Multiple energy storage modules (200) are stacked and arranged to form at least one row of battery clusters. Two adjacent energy storage modules (200) in each row of battery clusters are electrically connected, and the energy storage modules (200) in two adjacent rows of battery clusters are electrically connected. There is at least one power conversion module (300), and it is electrically connected to each of the battery clusters in the column.

6. The energy storage tank of claim 5, wherein, The power conversion module (300) is stacked with the battery clusters and is located on top or at the bottom of each column of battery clusters.

7. The energy storage tank of claim 5, wherein, The first chamber (100a) is provided with an air-cooling system for air-cooling at least one of the energy storage module (200) and the power conversion module (300).

8. The energy storage tank of claim 7, wherein, A first heat dissipation air duct (105) is provided between two adjacent rows of battery clusters. The air-cooling system includes a first cooling fan (410), which is disposed on the top of each column of battery clusters, and the air outlet of the first cooling fan (410) is arranged facing the first cooling air duct (105).

9. The energy storage tank of claim 7, wherein, A second heat dissipation duct (106) is provided between two adjacent energy storage modules (200) in each column of the battery cluster, and each of the second heat dissipation ducts (106) in two adjacent columns of the battery cluster is connected in a one-to-one correspondence; The air-cooling system includes a second cooling fan (420), the air outlet of which is arranged toward the second cooling duct (106).

10. The energy storage tank of claim 7, wherein, A third heat dissipation duct (107) is provided between each of the battery clusters and the power conversion module (300). The air-cooling system includes a third cooling fan (430), the air outlet of which is arranged toward the third cooling duct (107).

11. The energy storage tank of claim 5, wherein, The housing (100) is provided with at least one set of cabinet doors (110) corresponding to the first chamber (100a). Each set of cabinet doors (110) includes two door panels that open and close relative to each other, and the set of cabinet doors (110) is arranged opposite to the multiple rows of battery clusters.

12. The energy storage tank of any one of claims 1-4, wherein, The housing (100) is provided with a housing door (120) corresponding to the second chamber (100b), and the fire compartment (104) is provided on the housing door (120).

13. The energy storage box as described in any one of claims 1-4, characterized in that, The liquid cooling unit compartment (101) is provided with an air inlet (122) and an air outlet (123), and the air outlet (123) is located at the top of the liquid cooling unit compartment (101). In the vertical direction, the air inlet (122) is lower than the air outlet (123).

14. The energy storage tank of any one of claims 1-4, wherein, It also includes an electrical module (500), and an electrical compartment (102) is provided in the second chamber (100b) that is isolated from the liquid cooling unit compartment (101) and the fire compartment (104). The electrical module (500) is located in the electrical compartment (102) and is electrically connected to the energy storage module (200) or the power conversion module (300).

15. The energy storage tank of any one of claims 1-4, wherein, The top of the box (100) is provided with multiple lifting points (103), and the lifting points (103) are arranged and connected one-to-one with the columns of the box (100).

16. An energy storage system characterized by, Includes the energy storage box as described in any one of claims 1-15.

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